1. Techniques for analysis of nonlinear attitude control systems for space vehicles;Ergin;ASD Technical Report ASD-TDR-62-208,1962
2. Attitude control of a satellite vehicle—An outline of the problems;Roberson,1957
3. Classical Mechanics;Goldstein,1959
4. Adaptive Control Processes;Bellman,1961
5. Dynamic Programming;Bellman,1957